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Re: BT Fibre 900 Upload Speed

volemangler — Tue, 24 Aug 2021 14:03:55 GMT

Hi....first post, bit of a whinge I'm afraid.

For over a year I've enjoyed great performance up and down from my Fibre 900 service with an SH2.

Then all of a sudden, a few weeks ago, my upstream hroughput dropped from a what was always a solid 100-110 on fast.com to a feeble figure wavering between about 2mb/s and 11 mb/s, so it doesn't seem "capped" as such. This happens with a single PC on fast.com connected by cat6 to the hub, both WiFi radios off. Downstream is still as good as ever. Tried multiple cables, multiple PCs, and a new hub, to no avail.

Upstream sync speed to the BT servers is a solid 120mb/s so they tell me. Openreach checked the signal levels a the ONT and all is well. I connected the PC directly to the ONT via PPPoE and the upstream throughput on fast.com was way in excess of 100 mb/s. Downstream speed was down to about 450mb/s, but I suppose this was there was no hub to manage all that bandwidth.

After making nine phonecalls to BT and spending hours on the phone to BT I finally found a helpful chap who didn't try to palm me off with "Oh, we don't guarantee upload speeds" or conflate a healthy sync speed with actual traffic throughput . I had 2 engineer no-shows - both cancelled without telling me when I was waiting in. I've now got an "Offline Team" guy looking at it, but it's going nowhere.

We rolled back the hub firmware on a new hub to v26, turned off the WiFi radios, connected it with all default settings to a good i5 laptop with cat6, still a feeble 5mb/s upstream. He keeps banging on about other deviced connected to the hub, and how my network topology isn't good, but these single-device tests rule out the rest of the network. Besides, the same topology has served me well for 10 years and for a whole year with the same SH2 on Fibre 900. I think he's out of ideas.

My expensive FTTP service will no longer properly support Zoom or WebEx calls.

Any ideas of how to move forward please @NeilO ?

Re: BT Fibre 900 Upload Speed

gg30340 — Tue, 24 Aug 2021 18:03:05 GMT

By making a direct connection to the ONT with your PC and getting the throughput you would expect that would suggest that the problem is apparently after the ONT.

Although you have tried a new BT Hub, while you shouldn't need to but to assist in diagnostics have you considered getting a third party router. You could try and borrow one or buy one on Amazon/PC World and connect it up. If it works then you know where the fault lies and you could either keep the router or return it and get your money back.

Re: BT Fibre 900 Upload Speed

volemangler — Tue, 24 Aug 2021 19:37:19 GMT

Hi, and thanks for the reply. I had considered that, but a switch to Digital Voice is imminent, and this won't work with a third party router. Borrowing one is not an option, unfortunately.

Re: BT Fibre 900 Upload Speed

gg30340 — Tue, 24 Aug 2021 19:40:50 GMT

Then I guess we'll never know if it would have helped diagnose the problem.

Re: BT Fibre 900 Upload Speed

volemangler — Wed, 25 Aug 2021 08:22:18 GMT

I'm taking a risk buying a router with the intention of returning it, and it doesn't sit well with me, but you're right.....it's the only clear way forward, and I have little choice, unless I can get BT to spring for one on pain of losing my £62/month to Zen.

So.......Asus RT-AX86U ? If can't send it back at least it will make a decent AP.